Ответ:
I
1) simple –
simply
2) fast –
fastly
3) nice –
nicely
4) formal –
formally
5) colourful –
colorfully
6) angry –
angrily
7) bad –
badly
8) loud –
loudly
9) polite –politely
II
1) The Prince married Cinderella and they lived happily ever after.
2) Their French is best but they speak rather slowly.
3) If he doesn’t stop driving so fastly and so dangerously, he will have an accident one day.
4) Alex was rude but then he felt worse because of it.
5) That story made me cry, it was extremely sad.
6) He works hardly and always comes home very lately.
7) Try to persuade him to be carefully.
8) I am afraid I won’t be able to do it well enough to win the prize.
9) The old man thought he was seriously ill but he was mistaken.
Объяснение: